Live, quant evidence
Are the famous market anomalies still working?
Momentum, value, quality, low-volatility, and size: the effects you read about in papers, checked against what they are doing right now. Each is measured as its factor ETF's return relative to the market over the last month, quarter, and year. Positive means the anomaly is paying off. As of 2026-07-13.
Momentum
Recent winners keep winning for a while. The most robust anomaly across markets and history, but prone to sudden crashes.
1 month
-0.1%
3 months
+9.2%
1 year
-
Low Volatility
Calmer, less-volatile stocks have historically delivered similar or better returns than risky ones, the opposite of what textbooks predict.
1 month
-0.5%
3 months
-4.8%
1 year
-
Value
Cheap stocks (low price relative to fundamentals) tend to beat expensive ones over the long run, though value spent much of the 2010s in the wilderness.
1 month
-1.6%
3 months
+17.1%
1 year
-
Quality
Profitable, stable, low-debt companies have historically outperformed junky ones, a more recent addition to the factor zoo.
1 month
-0.3%
3 months
-0.6%
1 year
-
Size (Small Cap)
Small companies were long thought to out-earn large ones. The most contested anomaly, much of the effect faded after it was published.
1 month
+0.1%
3 months
-1.1%
1 year
-
Measured via liquid factor ETFs versus SPY from free end-of-day data, a practical proxy, not the academic long-short factor. A factor lagging for a year doesn't mean it's broken; anomalies go through long dry spells. Educational only, not investment advice.